Ecotone examples4/28/2023 ![]() Determined by total combined weight of all organisms at each trophic level. ![]() Biomass Mass of biological material, usually the total mass of a particular group or category. Food Web The combination of all the feeding relationships that exist in an ecosystem. Food Chain The transfer of energy and material through a series of organisms as each one is fed upon by the next. (ie: the organism that is supporting the feeder) Detritus The dead organic matter, such as fallen leaves, twigs, and other plant and animal wastes, that exists in any ecosystem. Host In feeding relationships, particularly paratism, refers to the organism that is being fed upon. They are commonly divided into ecto_, those that attach to the outside of the host, and endo_, those that live inside the host. Parasite Organisms that attach themselves to another organism, the host, and feed on it over a period of time without killing it immediately, but usually doing harm to it. Prey An animal hunted or seized for food, especially by a carnivorous animal. Predator An animal that feeds on another living organism, either plant or animal. Carnivores An animal that feeds more or less exclusively on other animals. Omnivores An animal that feeds on both plant and material and other animals. Inorganic All things such as air, water, minerals, and metals, that are neither living organisms nor products uniquely produced by living things. Organic All living things and products that are uniquely produced by living things, such as wood, leather, and sugar.
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